An ideal choice for roadies, the low-profile Siren™ offers 2 bottles worth of hydration. Its compact footprint allows access to jersey pockets and a secure zip pocket holds the contents of a small seat bag.

Features & Specifications
• Easy, convenient filling with external access to the OMEGA™ Reservoir
• Secure storage for tube, tools and energy bar
• Air Mesh harness & back panel keeps you cool
• Includes sternum strap
• Reflectivity for increased low-light visibility

Capacity: 50 oz /1.5 litres
Dimensions: 13in x 8in x 2in (330mm x 203mm x 51mm)
Cargo: 34 cu in (.60 L)
Weight: filled 4.10 lbs (1.86 kg) empty .80 lbs (.36 kg)